Brandon had 126 starfruits and 190 pears at first. He used
49 of the starfruits and
310 of the pears. He then bought some more pears. In the end,
13 of the fruits he had left were starfruits. How many pears did he buy?
| |
Starfruits |
Pears |
Total |
| Before |
126 |
190 |
|
| Change 1 |
- 56 |
- 57 |
|
| After 1 |
70 |
133 |
|
| Change 2 |
|
+ some |
|
| After 2 |
1 u |
2 u |
3 u |
Number of starfruits that Brandon used
=
49 x 126
= 56
Number of starfruits that Brandon had left
= 126 - 56
= 70
Number of pears that Brandon used
=
310 x 190
= 57
Number of pears that Brandon had left
= 190 - 57
= 133
Fraction of the fruits left that were pears
= 1 -
13=
23 Number of starfruits left = 1 u = 70
Number of pears left in the end
= 2 u
= 2 x 70
= 140
Number of pears that Brandon bought
= 140 - 133
= 7
Answer(s): 7
